FR2618803A1 - METHOD AND DEVICE FOR MANUFACTURING COMBINED FANCY YARNS - Google Patents

Abstract

The present invention relates to a method of making combined fancy yarns, in which the separated staple fibers are brought to a gimp yarn 18 undergoing false twist and are then secured thereto with a fixing yarn 20. who twists around them. The chopped fibers are fed continuously, in the free state, onto the wrapped yarn 18 and are attached to it at the moment of twisting by the fixing yarn 20. The device for carrying out this method comprises a microcarding machine 1 which is connected to a conical chamber 6, the tapered outlet opening 22 of which is arranged in an overlapping cone 10, formed at the front end of a hollow spindle 8, while at the opposite end of the spindle is placed a nozzle d rotary injection 12 for false torsion. To the conical chamber 6 is laterally connected a yarn guide 7 for the wrapped yarn 18. The method and the device according to the invention find application in the textile industry.

Description

Process and device for manufacturing combined novelty yarns

  The invention relates to a method and a device for manufacturing combined fancy yarns and more particularly fancy yarns composed of at least one wrapped yarn and a fixing yarn, as well as cut fibers, these fancy yarns being used in the textile industry. . We know, according to the Soviet author's certificate SU 359 319,

  a fancy yarn manufacturing process which involves bringing

  split fiber into cardboard ribbon using vacuum,

  along the inner walls of a rotating surface so that

  this rotating surface, periodically introduce a wire

  gimped undergoing a false twist. This wire rolls along the walls

  of the rotating surface so that the fibers adhering to these son twist tightly on the wire covered, and then fix themselves on

  the latter by twisting the fixing wire.

  The device for implementing this method comprises a

  micro-carder at the output end of which is incorporated a

  rotary drier followed by a rotating hollow spindle. The disadvantage of this

  The result is that the yarns thus obtained have a high degree of hardness.

  say that the disadvantage of the associated device is the frequent clogging of the condenser by short fibers which can not be

caught by the guiped thread.

  The object of the invention is to provide a method and a device for manufacturing combined novelty yarns which ensure the production of a large volume yarn with a woolen surface, by means of the use of fibers

  cut-off, all this with high productivity of the dis-

  positive. This object is achieved by a method of manufacturing combined novel yarns, in which the separated cut fibers are fed to a guiped yarn undergoing a false twist and are then attached thereto.

  last using a fixative wire that twists around them.

  According to the invention, the separated cut fibers are fed continuously, in the free state, onto the gimped wire undergoing a false twist.

  and attach to it at the time of the twisting of the fixing wire.

  This object is also achieved by a device for carrying out this method, comprising a micro-carder downstream of which is disposed a hollow spindle. According to the invention, the microcard is connected to a conical chamber whose tapered exit aperture is disposed in an overlapping cone formed in the anterior end of the hollow spindle.

  while in the opposite end of the spindle is placed a nozzle of

  Rotary jection for false torsion. At the conical chamber, is connected

  laterally a wire guide for the guiped wire.

  The advantages of the invention are as follows: The manufacture of fancy yarns combined by application of fibers directly from the card sliver, reduces the production processes

  of yarn and its stretching. The fibers wrap around the wrapped thread only

  part of their length and, as a result, a very voluminous and strongly lain yarn is produced. The finished yarn has a miniSale twist making it soft, flexible and suitable for use in all textile technologies. The process does not require the cut fibers to be of minimum length, which also makes it possible to use recovered fibers and regenerated fibers. This process does not limit

  the speed of feeding and this only depends on the possibilities

  the technical units of the functional units of the device, that is to say that the productivity exceeds by several times that of the processes and

known devices.

  The method and the device according to the invention will be better illustrated by means of the appended drawings which represent a diagram of

  principle of the device for implementing the method.

  The device according to the invention comprises a microcomputer 1

  carrying a drive disk 2 placed in contact with a tangential drive belt 3. Upstream of the mice-carder 1, is located

  a pair of feed rollers 4 in front of which is disposed a guide

  input ribbon 5, while downstream of the microcard 1, is

  mounted to a conical chamber 6. To the conical chamber 6, is incorporated laterally

  In addition to the curved wire guide 7, a coil of wire 19 and a wire guide 21 are arranged above the conical wire guide 21. Downstream of the conical chamber 6 is placed a hollow spindle 8 on which is mounted 9. The front end of the hollow spindle 8 is formed by a cone 10

  overlapping the tapered outlet end 22 of the conical chamber 6.

  The hollow spindle 8 is in contact with a tangential belt 11. On

  the posterior end of the hollow spindle 8, is placed an injection nozzle

  12, at the outlet of which is a pair of draw rolls 13, and below which is located a winding shaft 14 on which is disposed coil 15. A spinning pot 17 is placed upstream of the pair of feed rollers 4. The method according to the invention is implemented as follows

  the cut fibers, in the form of cardboard tape 16, are brought to

  firing of the pot 17 and using the supply roll coupler 4, to the micro-carder 1. The latter, during its rotation, separates the

  individual fibers, drives them along its periphery and

  thrown into the conical chamber 6. The wrapped thread 18 passes, from the spool of thread 19, through the guide wire 21 and enters the conical chamber 6, then passes through the hollow spindle 8 and the nozzle 12, and is then removed by the a pair of draw rolls 13 and is wound on the spool 15. The fixing thread is unwound from the canister 9 and twist around the wrapped thread. Under the action of the balloon of the binding yarn 20 and the rotary injection nozzle 12, the covered yarn is twisted and uncoupled by performing a rotary movement in the conical chamber 6. The fibers ejected from the micro-carder 1 in the conical chamber 6, under the action of the rotating air flow created

  by the rotary injection nozzle 12 and the rotation of the gimped wire 18,

  roll along part of their length around the gimped wire 18.

  The plexus thus obtained, together with the non-caught fibers, enters the cene formed by the balloon of the fixer wire 20 in the cone overlapping zone 10 of the hollow spindle 8. During its rotation, the fixing wire 20 winds around the complex formed by the guiped thread and the

  cut fibers, fixing the structure thus obtained.

Claims (5)

  A method of manufacturing combined novel yarns, wherein separate cut fibers are fed to a false-twisted gimped yarn and are secured thereto by a fastener yarn which is twisted around them, characterized in that separated cut fibers are fed continuously, in the free state, onto the guiped wire undergoing a false twist and are fixed on it at the time of their twisting by the fixing wire. 2. Method according to claim 1, characterized in that, in the zone of application of the fixing wire on the fibers, acts a current rotating air.   3. Fancy yarn manufacturing device combined for the implementation of the method according to claim 1, which comprises a   micro-carder downstream of which is disposed a hollow spindle, characterized   characterized in that a conical chamber, the tapered aperture (22) of which is disposed in an overlapping cene (10) formed at the anterior end of a hollow spindle (10), is connected to the micro-card (1) ( 8), while   the opposite end of the latter is mounted a rotational injection nozzle tive (12).   4. Fancy yarn manufacturing device according to claim 3, characterized in that, in the conical chamber, is incorporated laterally a curved wire guide (7) for the introduction of the guiped thread, while outside hollow spindle (8) is mounted   canetière (9) for feeding the fixing wire.   5. Fancy yarn manufacturing device according to claim 3 or 4, characterized in that upstream of the micro-card (1) is arranged a pair of feed rollers (4) in front of which is located a guide of input ribbon (5), while downstream of the rotary injection nozzle (12) is arranged a pair of drawing rolls   (13) under which are disposed a winding shaft (14) and a bobbin bine (15).